MITSUBISHI ELECTRIC ADVANCED AND EVER ADVANCING 2003 DEHUMIDIFIER SERVICE MANUAL Model No.MJW-21 MJ-E16S/E16SX-S1 Sold from 2003 CONTENTS 1. 2. 3. 4. 5. 6. PRODUCT SPECIFICATIONS........................................................................................ 2 OUTER DIMENSIONS .................................................................................................... 3 EXTERNAL VIEW, PARTS AND DISPLAY SECTION................................................ 3 ~ 8 TECHNICAL POINTS...
1. Product specifications Model MJ-E16S-S1 MJ-E16SX-S1 Dehumidifying capacity 16.0 Laundry 41 Continuous dehumidifying 37 single phase, 220-240V, 50Hz Power supply (phases,V,Hz) Power consumption (W) 275 Operating current (A) 1.3 Starting current (A) 5.5 Color tone Metallic Blue (A) Dimensions (H × W × D mm) 570 × 384 × 183 11.
2. Outer Dimensions 3. External View, Parts and Display Section E16SX Front Control Panel Air purifying filter Already installed at time of purchase Air filter Back Handle Raise handle to transport Louvre Front panel Water Tank Tank Lid Floating element Front door Side air intakes (left/right) Do not block Sensor Do not cover Continuous drainage outlet Power Plug The water tank may contain water residue at time of purchase. This is from final product testing at the factory and is not due to a defect.
Control Panel MJ-E16S ¡ COLD Lamp ¡ OFF Timer Lamp Lights when the room temperature drops below 15°C ¡ Lamp ¡ Power button Current mode lights Set time lights Use this to switch the unit OFF and ON. ¡ Auto button ¡ OFF Timer button For swiching mode the EASY DEHUMIDIFYING For setting the Timer ¡ Mode button For switching from one operating mode to another ¡Tank full Lamp This lights up to warn that the water tank is full.
Humidity level (%) ¡ Easy Dehumidifying E16S E16SX 60 50 0 20 27 30 Room temperature (°C) ¡ Low The unit automatically controls airflow to counter excessive room temperature/humidity. It activates the blower at high temperatures. ¡ Room temperature is below 27°C - the unit automatically sets the humidity level according to the temperature. ¡ Room temperature is above 27°C - the unit lowers the humidity level to 50%, then activates the blower.
E16SX E16S High humidity warning Low indicator Cold lamp The indicator flashes when the humidity in the room exceeds 75%. Activating the dehumidifier is recommended when the indicator is flashing. When the room temperature falls below 15°C while the unit is operating, the lamp turns on or the indicator appears. If the High humidity warning is not used, remove the power plug from the power socket.
E16SX <> <> The ON timer can be set for 1 to 9 hours. Set the timer when the power is switched off. The OFF timer can be set for 1 to 9 hours. Set the timer when the power is switched on. To set To set 1 Switch the power off. 2 Set the time you wish the unit to turn on. 1 Switch the power on. 2 Select operating mode. Select desired operating mode. Press ¡ Press once. The Power lamp, Mode indicator, and a [ ] on the digital display flash.
E16SX To Lock Releasing the child lock Press for 3 or more seconds. ¡ The child lock indicator The child lock is switched off when the power cord is unplugged. Press for 3 or more seconds. ¡ The child lock lamp goes out. When the child lock is activated the unit cannot be switched off or on. The other switches are also inoperable until the child lock has been released. ¡ If you lock the unit when the POWER is OFF.
4.2 Operation and Performance Working temperature Defrosting Dehumidification is possible with a room temperature of 1 – 35°C. If the room temperature exceeds 35°C, however, the temperature inside the unit will increase; therefore, the protective device may activate and halt operation in some cases. For this reason, the louvres should be aimed upward.
4.3 Coolant Circuit φ5 Compressor Coolant flow Dehumidifying Defrosting φ5 φ5 φ6.35 Tube temperature sensing thermistor Solenoid valve Heat exchanger (heat radiation) Blow Fan (closed when dehumidifying and open when defrosting) Capillary tube Humidity sensor φ5.0 × φ4.0 Heat exchanger (cooling) φ6.35 Intake Room temperature sensing thermistor φ6.35 φ6.35 Capillary tube φ2.0 × φ0.8 × 340 4.
2 1 Front panel Air filter The air purifying filter cannot be washed in water. Replace the air purifying filter when it becomes dirty. Air purifying filter Remove the air-purifying filter Run a vacuum cleaner lightly over the air filter surface to remove the dirt. 2 Hook the top edge to the top part of the unit and push the bottom in. Attach the air filter and front panel Honeycomb side Set the air-purifying filter into the air filter with the honeycomb side up.
6. Wiring Diagram and Block Diagram 6.
6.2 Function List E16S Laundry Low temp Air purifier ON ON ON OFF ON ON ON ON ON OFF OFF OFF OFF Blower OFF Solenoid value OFF OFF OFF OFF OFF OFF Defrost Off timer Low ON/ OFF ON/ OFF Compressor Tank full Easy Dehumidifying Operation off Operation mode Dehumidifying operation OFF OFF OFF OFF ON One item is Easy dehumidifying Low Indicator Laundry Low temp Air purifier Off timer Tank full Defrost Low temperture ※ = Lit. = Can light. = Not lit.
1 Humidity set operation E16SX (a) Compressor and blower fan operation will switch by current humidity and set temperature.
5 Easy Dehumidifier E16S E16SX (a) Modifies humidity setting or operates CIRCULATE mode (blower only mode) according to the room temperature. (b) Switches temperature table every 60 seconds to prevent the blower from turning on and off at the 3-minute restart for the coloured section in the chart below. (51% – 59%) (c) When the room temperature is above 29°C (temperature rising) or 27°C (temperature decreasing), CIRCULATE mode operates with the humidity below 50%.
Humidify Blower fan Float switch Tank full light Compressor Operation mode Operation switch E16S 50% 60% OFF LO Mi Hi SH OFF ON OFF ON OFF ON OFF ON max 3 min. min 7 min. Easy dehumidifying Easy dehumidifying/ Mode Mi for 2 sec. at start-up. Power ON 6.3 Timing Charts Mode button ON Auto Easy ON 3 sec. Easy dehumidifying ※ When room temperature is between 20℃ and 27℃.
Tube temperature Blower fan Solenoid valve Compressor Timer button Timer lamp Mode lamp Operation switch E16S 0℃ 12℃ OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON Defrost count start 40 min. Defrost Defrost start Defrost finish Off timer ON ２ｈｒ Off timer ON ４ｈｒ Off timer ON ８ｈｒ 4 hr. After 4 hr. Off timer ４ｈｒ 2 hr. After 1 hr. ２ｈｒ 2 hr. After 2 hr.
Swing on Audible alarm Louvre indicator (“swing on” only) Louvre Swing off Low temperature High Humidity Warning Tube temperature Humidity Tank full light Float switch Solenoid valve Blower fan Compressor Mode display Operation switch E16SX OFF OFF ON OFF ON OFF ON OFF ON OFF ON ON 0°C 12°C 61% 60% 59% OFF OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON ON Closed Operation ON Stopped at 90° Max 3 min. Min 7 min.
Swing on Audible alarm Louvre indicator (“swing on” only) Louvre Swing off Low temperature High Humidity Warning Tube temperature Humidity Tank full light Float switch Solenoid valve Blower fan Compressor Mode display Operation switch E16SX OFF OFF ON OFF ON OFF ON OFF ON OFF ON ON 0°C 12°C 75% OFF OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON ON 40 min.
Swing on Audible alarm Louvre indicator (“swing on” only) Louvre Swing off Low temperature High Humidity Warning Tube temperature Humidity Tank full light Float switch Solenoid valve Blower fan Compressor Mode display Operation switch E16SX OFF OFF ON OFF ON OFF ON OFF ON OFF ON ON 0°C 12°C 75% OFF OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON ON On timer ON 1 hour elapsed Area indication only On timer Operation ON ON (Set to 2 hours) 2 hour elapsed Off timer ON 1 ho
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E16SX 24
7. Troubleshooting Procedure 7.1 Troubleshooting flowchart The compressor does not operate in Air purifier mode. The unit does not operate Start Check AC power supply Abnormal Restore AC power supply Normal Blown Has the fuse blown out? Replace fuse Not blown Is the float switch turned on? OFF ON Control board connector check Mechanical check • Correct defects. • Replace the switch if defective.
If the customer complains that the unit won’t dehumidify, make the following checks before starting to repair the coolant circuit: 1 Clogged filter, or dust: ➞ Action: Clean. 2 Low-temperature, low-humidity operating environment: ➞ Action: See the explanation of the graph on page 9, or move the unit to a kitchen or bathroom and request verification of its performance. ★ If the problem persists, check the cooler tube temperature.
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(2) Deactivating 3-minute restart prevent lock ●Start: Press the MODE and HUMIDITY SELECTION buttons (Auto buttons for the E16S) together 3 times when the power is off. Press the POWER button within 2 seconds. ●Functions: 1 Deactivates 3-minute restart prevention lock 2 Activates compressor 3 Operating mode: Low Temp 4 Operates blower on HIGH ●To end: Turn power off. Valve functions for 3 seconds.
(5) LED sensor test E16S Start...................... Press the MODE and AUTO buttons together 4 times when the power is off. Press the POWER button within 2 seconds. Mode selection ..... Use the AUTO button to change through the self test modes.
8. Disassembly and Reassembly Hints 8.1 Disassembly Procedures * The pictures show an E16SX Picture 1 1. Remove the water tank (See Picture 1.) 2. Remove the front panel and air filter assembly Click fittings Steps 1) Hold down the bottom of the front panel and pull it forward (releasing the bottom side click clamp fittings). Then lift it upward and remove. 2) Hold down the air filter assembly knob part, then pull it forward and remove.
<> Steps 1) Pull the front case switch operation part to the outside, detach the main board cover side switch button (convex part) fittings, and remove the main board cover assembly. Picture 7 (See Picture 7) 2) Release the main board click fittings (4 points on the bottom), and remove the main board.
5. Remove the blower fan assembly Steps 1) Following the sequence in Procedures 1-4 above, remove the water tank, front panel, front case assembly and rear panel. 2) Remove the connectors (8) in the power supply board. 3) Remove the power supply board box assembly. Picture 14 Solenoid valve Power supply board box assembly (See Picture 15) 4) Disconnect the blower fan guide case lead wires on both sides from the guide case.
6. Removing the drain pan assembly Steps 1) Following the sequence in Procedures 1-3 above, remove the water tank, front panel, front case assembly, rear panel and blower fan assembly. 2) Release the drain pan and base fittings, lift up the right side of the heat exchanger while removing the base.
9. Continuous Water Drainage If a drain is available, the unit can continuously drain excess water by attaching a commercially available hose (internal diameter 15mm). The unit can be operated for extensive periods without the need to empty the water tank. Do not drain water continuously if there is a possibility that temperatures around the hose could drop below freezing point. CAUTION Foreign objects, etc. could clog the hose resulting in overheating and/or leakage.
Parts Catalog Model MJ-E16S/SX-S1 Exploded View MJ-E16S 20 9 21 7 23 6 22 15 10 c 7 b 8 14 6 5 18 19 13 12 11 a 17 2 36 3 1 4 16
Parts Catalog Model MJ-E16S/SX-S1 Parts List Notes: 1.New parts and the parts that are used only with these models lack compatibility. 2.Those parts that are marked by and are of critical importance for sustaining safety and performance. Use specified parts at replacement. Exploded View Matching No. Pert No.
Parts Catalog Model MJ-E16S/SX-S1 Exploded View 37 36 35 31 32 30 d 27 34 33 29 28 6 25 26 24 38
Parts Catalog Model MJ-E16S/SX-S1 Parts List Notes: 1.New parts and the parts that are used only with these models lack compatibility. 2.Those parts that are marked by and are of critical importance for sustaining safety and performance. Use specified replacement. Exploded View Matching No. Pert No.
Parts Catalog Model MJ-E16S/SX-S1 Exploded View 1 a 6 7 3 c 2 b d 9 40 4 8 5
Parts Catalog Model MJ-E16S/SX-S1 Parts List Notes: 1.New parts and the parts that are used only with these models lack compatibility. 2.Those parts that are marked by and are of critical importance for sustaining safety and performance. Use specified replacement. Exploded View Matching No. Pert No.
Parts Catalog Model MJ-E16S/SX-S1 Exploded View 12 18 19 a 1 3 2 11 13 14 15 17 16 6 Rear View 4 5 7 21 8 9 20 42 22 10
Parts Catalog Model MJ-E16S/SX-S1 Parts List Notes: 1.New parts and the parts that are used only with these models lack compatibility. 2.Those parts that are marked by and are of critical importance for sustaining safety and performance. Use specified replacement. Exploded View Matching No. Pert No.
9. Troubleshooting The unit does not operate. ¡Power plug is unplugged. ¡The Tank full light is lit. ¡The water tank is not installed properly. ¡The unit is in the EASY HUMIDIFYING or HUMIDITY SET modes. ¡The unit is defrosting. (The unit will restart when the defrosting session completes.) Dehumidifying does not function. ¡Air filter is clogged. ¡Air outlet and/or intake are blocked. Water does not accumulate in the water tank. ¡The humidity level and/or temperature are low. No airflow.
Operation noise reverberates. ¡Sometimes occurs when using the unit in a room with flooring or in a narrow room. Rumbling or other strange sounds are made by the unit when starting, stopping operation, or changing modes. ¡The refrigerant may be producing strange noises before its circulation stabilizes. A “buzz” can be heard sometimes. Compressor does not work. ¡To protect the compressor, it will not operate for 3 minutes when the unit is turned on immediately after being turned off or plugged in.
If the plug is not fully inserted into the socket, dust may gather on the connectors which may cause fire and/or electric shock. Wipe dust off the power plug and insert the plug firmly. Accidentally drinking the water or using it for other purposes may cause illness and/or unforeseen accidents. Remove water that has collected in the tank. Use 220-240V AC power sockets that can withstand more than 15A current.
Losing your footing while carrying the unit may cause personal injury or damage to the floor. Before moving the unit always switch it off, unplug it and remove water from the water tank. Moving the unit with water in its tank may cause the water to leak and damage the surrounding objects and in turn result in electric shock and/or an electric leak. When the unit is on, the internal fan rotates at high speeds and may cause injury.
Issued in 2003.
